diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2024-03-25 10:41:01 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-03-25 14:17:06 +0000 |
| commit | 43199b13938aa693b2f10d8d17c59eebfe4e40c5 (patch) | |
| tree | f21814a3b32575debd9cdeac3d36a332739111f6 | |
| parent | b13ba381ca4d0b3e96a9e5bd138a1f3e11b5a637 (diff) | |
tests/unit/test-throttle: Avoid unintended integer division
In test_compute_wait() we do
double units = bkt.max / 10;
which does an integer division and then assigns it to a double variable,
and similarly later on in the expression for an assertion.
Use 10.0 so that we do a floating point division and calculate the
exact value, rather than doing an integer division.
Spotted by Coverity.
Resolves: Coverity CID 1432564
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240312183810.557768-7-peter.maydell@linaro.org
| -rw-r--r-- | tests/unit/test-throttle.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tests/unit/test-throttle.c b/tests/unit/test-throttle.c index 2146cfacd3..24032a0266 100644 --- a/tests/unit/test-throttle.c +++ b/tests/unit/test-throttle.c @@ -127,13 +127,13 @@ static void test_compute_wait(void) bkt.avg = 10; bkt.max = 200; for (i = 0; i < 22; i++) { - double units = bkt.max / 10; + double units = bkt.max / 10.0; bkt.level += units; bkt.burst_level += units; throttle_leak_bucket(&bkt, NANOSECONDS_PER_SECOND / 10); wait = throttle_compute_wait(&bkt); g_assert(double_cmp(bkt.burst_level, 0)); - g_assert(double_cmp(bkt.level, (i + 1) * (bkt.max - bkt.avg) / 10)); + g_assert(double_cmp(bkt.level, (i + 1) * (bkt.max - bkt.avg) / 10.0)); /* We can do bursts for the 2 seconds we have configured in * burst_length. We have 100 extra milliseconds of burst * because bkt.level has been leaking during this time. |